extractant vs solvent

extractant and solvent both are nouns.

Word	Noun	Adjective	Verb	Adverb
extractant	Yes	No	No	No
solvent	Yes	Yes	No	No

As nouns, solvent is a hypernym of extractant; that is, solvent is a word with a broader meaning than extractant:

extractant: an immiscible liquid used to extract a substance from another liquid.
solvent: a liquid substance capable of dissolving other substances

Other hypernyms of extractant include dissolvent, dissolver, dissolving agent, resolvent.

extractant (noun)	solvent (noun)
an immiscible liquid used to extract a substance from another liquid.	a statement that solves a problem or explains how to solve the problem
	a liquid substance capable of dissolving other substances

extractant (adjective)	solvent (adjective)
	capable of meeting financial obligations